Introduced on May 20, 2002
Here under the News are changes to the homepage noted, in example Upload of new material or changed pages. New posts are inserted at the top so that you can see them immediately and you only have to scroll for the older ones. However, from time to time I delete older posts so that the page itself is not particularly large.

August 31, 2021: 2 music albums released
from a long time ago
I recently rummaged through my music hard drive and I found 2 albums called "Next Generation" and "Sweet Insanity" which I produced in 1992 and 1994 with my sound generator at the time, the Roland-U220 and the Kawai K1-II synth. I was fascinated by what I had composed and thought to myself, it's actually a shame that it goes dead on the hard drive. So I decided without further ado to publish both albums on my homepage. Let me see that the sound quality is of course not yet up to date, but just from the melodies and the ideas I had there, it is extremely fascinating to listen to. You can find both albums here.
July 27th, 2021: free your mind
(new recording with Yamaha CLP-785)
Since the sound quality of the original recording of my piano piece free your mind is not exactly outstanding (who is surprised if you only have the camera microphone and record the sound directly from a real Eterna piano), I re-recorded it with the Yamaha CLP-785 digital piano . These are of course the advantages of a digital piano over a real piano. It may sound a little worse than a real piano, but it has a built-in recording device and you can record piano pieces directly and without annoying noise in excellent quality. The way to the piece is this way.
May 1st, 2020: Revision of the music section
Lately, when I was trying to play a song from me on my homepage to a friend, I noticed that my music area is hopelessly out of date ... * shame *
The Firefox browser I use has deactivated Flash content on websites for some time due to a high security risk. Where there is flash content, you only see a kind of Lego brick and when you click on it you are kindly informed that you should only allow Adobe Flash on websites that you trust. Okay, you could trust my site, but of course it´s just not up to date anymore. Therefore, I have revised the entire page in the course of internationalization. Audio is now played with an HTML5 audio player that all current browsers should be able to play. And to celebrate the holiday (May 1st), I also uploaded all the songs that were only partially available in full and the songs that previously had a slightly poorer mp3 quality (128-192 Kbps) against CD quality (256 Kbps) exchanged. So if you want to listen to music, here´s how: Music
April 29, 2020: udosworld goes international
Internationalization is entering my homepage! For a long time I had the wish to install language support for foreign languages and now the time has finally come. Of course it takes a while to chase all the texts through the translation computer (it can only be months), but the first step in the form of 3 flags is done. The homepage tries to set the correct language based on the country code of the browser. If this fails, you can click on one of the 3 flags and select your national language. The choice is: German, English and Japanese ... Hai!
October 12, 2019: Pictures of Tokyo
I was in Tokyo! And I´m more than impressed! Tokyo is an absolutely fascinating city. There are so many things to see and explore, it´s just amazing. And what you hear about the Japanese is true. I have never met a people that is as friendly, polite, helpful, disciplined and efficient as the Japanese. I was just blown away. And of course I took a lot of pictures. And even though I watched a lot in the 2 weeks, I just scratched the surface of what you can see and experience in Tokyo. I think I will have to visit the city more often ...
Click here for the pictures.
June 24, 2018: New data protection regulation GDPR
As some may have noticed, I shut down my page for a short time, since a new data protection regulation came into force on May 25, 2018 and it has it all. Violations of the new regulation can cost up to 20 million euros or 4 percent of annual sales, whichever is higher! But before some people look a little kinky at their savings stocking, according to a member of the Bundestag, there is first a warning for violations, which can also cost around 10,000 to 20,000 euros. Hence the temporary decommissioning and first read the explanation in peace what they want from you again. And of course they shoot cannons at sparrows again. What is really good for Facebook, Google and other data collectors with first-class spy tools is hopelessly exaggerated for a private person with a private homepage like me. But they didn´t make a difference. All the snoopers and spies now have to put their cards on the table and say exactly, or give information about what data they have and what they want to do with them. And if you refuse the storage of your data, they have immediate to deletion them. All of this serves to protect the private data of every individual who moves on the Internet and is a powerful tool against Google, Facebook and Co. and long overdue to finally stop them.

What is lonely for Facebook, Google and Co is a nuisance for a private person like me with a private homepage without any collection of personal data, because unfortunately they have formulated it so strictly that EVERY homepage actually needs a data protection declaration, even if you don´t save any personal data like me. According to GDPR (General Data Protection Regulation), even an I.P.address falls under personal data, since you COULD identify a person with it. Little is interested in the fact that something like this is completely impossible for a private individual like me, since only the police can, with a corresponding judicial decision, inquire about the surrender of the owner of an I.P.address from the provider. And since the technology is made by default so that an IP address is transmitted when visiting a website (must also be so, because where else should the web server know where to send the requested page?!?) And this EVERY homepage, whether private or not, actually needs to be saved in log files, where the website operator at least points out this automatic storage circumstance. Of course, you could still discuss whether you still need one if the I.P. It is saved anonymously, which is also the case according to the log files of my provider 1und1, but I did not want to take any risks because my wallet is just too small and therefore my homepage now has a data protection declaration. And as I said, even though I do not save any personal data. I have neither Google Analytics nor other spy tools from Google or Facebook and cookies are only available for me to snack on. I have already considered whether to put a saying directly on the input image: Cookie free since 2002 ....

What is changing on my page now? Unfortunately, I had to take out the guest book, because according to the GDPR websites with form entries must have encryption and since I don´t have such a thing at the moment, I was unlucky. And as so often, one action triggers another action and the rat tail gets longer again. When I took out the guest book, I noticed a few errors in the page in the menu and actually had to revise the whole page. In the course of the revision, I also disposed of the dusty menu item PC Tips, since it mainly contained entries from Win2000 and WinXP, which is absolutely out of date. And above the imprint is now the new menu item called Privacy, which contains my explanation that when you visit a website, the IP address transmitted is saved in log files of the web server, but I do not otherwise collect any personal data, since my page contains one Simple HTML website with a bit of PHP and javascript support, which is only intended for viewing and not for collecting and which does not include any third-party software such as Google, Facebook and Co. There is not a single cookie here! And that since the page exists, which has now been around 16 years. And if you want to have something to laugh at, I recommend reading the section Contact inquiries / Contact option of the data protection declaration, because it even explains that if you send me an e-mail, I have to cache your e-mail address on my computer so that I can write you back again .... hohohoho .....

Click here for the data protection declaration.
February 16, 2018: timecmp update from 2.0 to 2.1
I gave my self-written program timecmp an update after I noticed a small error that the program cannot handle files with more than one space in the file name. The bug has been fixed and the version number increases from 2.0 to 2.1. The program goes here.
January 30, 2018: Another self-written Qt program: mkvextract-gui
Apparently there is no reasonable graphical user interface for mkvextract from the mkvtoolnix from and with the included gui (gui = grafphical user interface) from mkvtoolnix called mkvtoolnix-gui there are no extractions Function for individual mkv tracks. An Internet search for a gui for mkvextract under Linux led to a wild construct from a Windows program that is operated using a Windows emulation under Linux. For this reason, I quickly wrote my own graphical user interface for Linux using Qt4.

But folks, honestly, just so that you can easily extract individual tracks from an mkv file with a click of the mouse, should I get a Windows program to run using a Windows emulation similar to wine under Linux? What did you throw in ... * ggg *

No thanks. I prefer to write my own little program, which may not have full support for all possible traces of an mkv file, since it only supports the three main groups of video, audio and subtitles, but who needs more? I think the most important thing about a film is still seeing, hearing and reading German subtitles if the film is in Japanese ... *g*
The program goes here.
28. Januar 2018: Neues Qt-Programm cifs-client
Aus der Notwendigkeit heraus, mein Linux System nicht andauernd neu starten zu müssen, nur weil man ein entferntes Windows-Verzeichnis eingehängt hat, habe ich das Programm cifs-client geschrieben. Leider ist es bei mir so, daß wenn ich eine Windows-Freigabe mittels
mount -t cifs //Server/Freigabename /mnt/Freigabename
unter Linux in den Verzeichnisbaum einhänge, geht sie nach so ca. 15 Minuten in einen "Schlafmodus" der allerdings eher einem Dornröschen Schlaf ohne Kuss der wahren Liebe ähnelt, denn sämtliche Versuche auf das Verzeichnis zuzugreifen oder es wieder auszuhängen scheitern. Man schafft es nicht einmal mittels des SIGKILLS Signals, welches eigentlich Prozesse rigoros beendet, den cifs-Prozess zu beenden oder einen ls-Befehl, welchen man auf den Share ausgeführt hat. Im schlimmsten Fall hängt sogar das ganze Linux System! Da tun sich Abgründe auf, die man vorher nie für möglich gehalten hat! Ein Linux System das nicht mehr reagiert und mittels des Reset-Buttons am PC beendet werden muß. Da fühlt man sich ja fast wie bei Windoof...*ggg*
Um dem entgegen zu wirken, kann man mit meinem Programm freigegebene Verzeichnisse von Windows-Rechnern im hauseigenem Netzwerk anzeigen lassen und in den Verzeichnisbaum einhängen und alle 5 Minuten sendet das Programm ein Signal an den entfernten Rechner, damit dieser eben nicht einschläft und nie wieder aufwacht. Zum Programm gehts hier lang.
16. Oktober 2017: Umbau der Filme Seite auf HTML5
Da Flash mittlerweile wegen der vielen Sicherheitslücken verpönt ist, haben namhafte Videoportale und Streaming-Services wie youtube und Amazon schon längst auf den neuen HTML5 Player umgestellt. Und da der auch noch qualitativ hochwertige Videos abspielen kann, hab ich meine Filme Seite ebenfalls auf HTML5 umgebaut. Aber natürlich mit einem sogenannten "Flash-Fallback", d.h. sollte jemand noch ein veraltetes System mit veraltetem Browser verwenden der kein HTML5 kann, werden automatisch die alten Flash-Filme im alten Flash-Player angezeigt. Dann natürlich in schlechterer Qualität. Zu den Filmen gehts hier lang.
07. Januar 2017: Neuer Linux Eintrag über IPsec
und neues Programm ipsec-status
Es gibt einen neuen Beitrag unter Linux über IPsec Verbindungen mittels strongSwan, inkl. eines neuen Programms, welches den Status einer IPsec-Verbindung anzeigen kann.
Zum Beitrag "Psec Verbindung mittels strongSwan und RSA Schlüsseln + EAP-MSCHAPv2 Authentifizierung" gehts hier lang.
Zum Programm "ipsec-status" gehts hier lang.
04. Dezember 2014: Langsames schreiben
auf Western Digital Festplatten
Festplatten Fehler

Es ist schon krass, wenn man eine neue Festplatte kauft und bei heutigen SATA Festplatten eine minimale Schreib-Geschwindigkeit von 80 MB/sec erwartet und lediglich 40 MB/sec unter Debian lenny und 5! MB/sec unter Debian wheezy bekommt. Noch dazu wenn man sich teure Platten gegönnt hat. Daß da etwas nicht stimmen kann, fällt jedem sofort auf, bzw. unter Debian lenny noch nicht sofort, denn die dort verwendete alte Version von fdisk zeigt nicht mal einen Fehler. Der taucht erst in etwas unscheinbaren Lettern ab Debian wheezy auf und noch eindrucksvoller in roten Buchstaben unter der testing Distribution von Debian jessie mit der fdisk Version 2.25.2 (siehe Bild). Das Problem im Detail könnt ihr hier nachlesen. Nur kurz die Zusammenfassung:

Bisher wurden Festplatten immer mit 512 Byte großen Datenblöcken gebaut. Western Digital wechselt nun auf 4 KByte große Blöcke. Herkömmliche Partitionierungs-Tools in den Standardeinstellungen partitionieren diese nicht korrekt, bzw. wird die Partitionierung nicht korrekt an den 4k Blöcken ausgerichtet. Dies führt zu der in roten Buchstaben angezeigten Fehlermeldung und zu dramatischen Performance Einbußen beim schreiben. Nur so zum Vergleich: Mit der fehlerhaften Partitionierung schaffte meine Platte unter Debian lenny besagte 40 MB/sec und unter wheezy gerade mal 5 MB/sec! Mit korrekter Partitionierung erreicht die Platte Spitzenwerte von 160 MB/sec! Wenn das kein Unterschied ist...

Die Lösung des Problems ist explizit auf die korrekte Partitionierung zu achten. Dazu muß man fdisk mit den Optionen
# fdisk -H 224 -S 56 /dev/sdb
abstarten, dann richtet es automatisch die Partitionierung an den 4k Blöcken aus. Als kleine Hilfe zur Überprüfung: Der Startwert der Blockangabe in fdisk muß durch 4 teilbar sein. Wie man auf dem Bild sieht, beginnt er dort bei 63 und ist somit falsch. Jedoch reicht es auch völlig zu überprüfen ob noch eine rote Fehlermeldung erscheint. ;-)
25. September 2014: Außerirdische
Ich habs schon immer gewußt und jetzt hab ich den endgültigen Beweis. Marsianer sind unter uns! Siehe hier: